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So what probably happened? #4493809
08/20/17 04:45 PM
08/20/17 04:45 PM
Joined: Apr 2017
Posts: 438
Mississippi
Speak2Mountain Offline OP
Speak2Mountain  Offline OP

Joined: Apr 2017
Posts: 438
Mississippi
Put Pennzoil Plat. in a pretty dirty GDI engine at 121K. At 123K the oil was black. Changed it at 124.5 b/c I THOUGHT I smelled fuel in the gas. (Blackstone said different)

Took it to Toyota (free synth. change) and they used Valvoline MaxLife 5w30

Checked the oil at 2K (today) and its only a caramel color.

So did the PP clean up the engine so well that the Valvoline didn't have much to do as far as cleaning or

Does PP have a superior detergent pkg than MaxLife? So which might it be?

Last edited by Speak2Mountain; 08/20/17 04:46 PM.
Re: So what probably happened? [Re: Speak2Mountain] #4493812
08/20/17 04:56 PM
08/20/17 04:56 PM
Joined: Jun 2014
Posts: 2,922
Phoenix, Arizona - USA
SirTanon Offline
SirTanon  Offline

Joined: Jun 2014
Posts: 2,922
Phoenix, Arizona - USA
PP is a very high quality GTL synthetic, with a strong detergent package. Odds are extremely good that it cleaned up most of what was gunking up that engine, which is why it turned black.

The MaxLife, while it does have a decent detergent package and quality base stock, probably didn't have nearly as much left in the engine to clean up, after the PP did its work.


2010 Ford Fusion SE - 2.5 liter/6F35 Trans - 271,000mi
2014 Nissan Altima SL - 2.5 liter/CVT - 62,000mi
Re: So what probably happened? [Re: Speak2Mountain] #4493813
08/20/17 04:59 PM
08/20/17 04:59 PM
Joined: Apr 2004
Posts: 5,358
Texas
JustinH Offline
JustinH  Offline

Joined: Apr 2004
Posts: 5,358
Texas
My hyundai GDI engine turns any oil black in 500-1000 miles.


'11 Hyundai Sonata GLS
'11 Scion XB
Re: So what probably happened? [Re: Speak2Mountain] #4493814
08/20/17 04:59 PM
08/20/17 04:59 PM
Joined: Jul 2004
Posts: 12,131
Middlesex County CT
simple_gifts Offline
simple_gifts  Offline

Joined: Jul 2004
Posts: 12,131
Middlesex County CT
Or.... the additives in PP darken when exposed to heat faster than in Valvoline.

There is no control; so no conclusions can be drawn.

Last edited by simple_gifts; 08/20/17 05:00 PM.

2004 Prius; 110K; ASL
2007 Yaris 86K 0w-40 Castrol
2006 B2300;132K;ALM


Was driving an ox cart; Now on the USS Enterprise
Re: So what probably happened? [Re: Speak2Mountain] #4493824
08/20/17 05:18 PM
08/20/17 05:18 PM
Joined: Jan 2009
Posts: 6,804
New England
gathermewool Offline
gathermewool  Offline

Joined: Jan 2009
Posts: 6,804
New England
What makes you think it was pretty dirty? Is the car new-to-you?


'14 Forester XT FA20DIT (Cobb Stage 1)
Edge 0W-40 + FU filter (64,774 miles)
'15 Legacy FB25 (OEM Stage, uh, neg. 7?)
Edge 0W-20 + FU filter (40,803 miles)
Re: So what probably happened? [Re: gathermewool] #4493831
08/20/17 05:30 PM
08/20/17 05:30 PM
Joined: Apr 2017
Posts: 438
Mississippi
Speak2Mountain Offline OP
Speak2Mountain  Offline OP

Joined: Apr 2017
Posts: 438
Mississippi
yes, just got it.

Re: So what probably happened? [Re: Speak2Mountain] #4493844
08/20/17 05:41 PM
08/20/17 05:41 PM
Joined: May 2013
Posts: 2,169
Saskatchewan, Canada
Johnny2Bad Offline
Johnny2Bad  Offline

Joined: May 2013
Posts: 2,169
Saskatchewan, Canada
Oil colour alone tells you very little. It's an unreliable indicator of anything, actually.


'57 FL Straight 50 wt
'90 Miata 1.8L w/Rotrex Supercharger [Mobil1 0W-40]
'96 Ram 1500 [3.7L Mobil1 0W-20 / 1L 15W-50]
'01 PT Cruiser [Mobil1 0W-40]
Re: So what probably happened? [Re: Johnny2Bad] #4493870
08/20/17 06:04 PM
08/20/17 06:04 PM
Joined: Jan 2009
Posts: 6,804
New England
gathermewool Offline
gathermewool  Offline

Joined: Jan 2009
Posts: 6,804
New England
Originally Posted By: Johnny2Bad
Oil colour alone tells you very little. It's an unreliable indicator of anything, actually.


+1

However, there's a huge difference between black-looking oil with 2k miles on it and black oil with 7k miles on it. My old STI used to turn oil dark very quickly; however, the opacity changed as the miles got on. 7k-mile-old oil looked pretty gross and indicated pretty much depleted in UOA.


'14 Forester XT FA20DIT (Cobb Stage 1)
Edge 0W-40 + FU filter (64,774 miles)
'15 Legacy FB25 (OEM Stage, uh, neg. 7?)
Edge 0W-20 + FU filter (40,803 miles)
Re: So what probably happened? [Re: Speak2Mountain] #4493924
08/20/17 07:08 PM
08/20/17 07:08 PM
Joined: Oct 2007
Posts: 981
South East Asia
kr_bitog Online content
kr_bitog  Online Content

Joined: Oct 2007
Posts: 981
South East Asia
On the clean non-burning oil engine i dont find PP getting dark very fast, i find it stays in color longer than standard M1. However, it may not last that long, the PU i used is quite black and make engine noisy in 7k km.

Re: So what probably happened? [Re: gathermewool] #4493935
08/20/17 07:18 PM
08/20/17 07:18 PM
Joined: Jun 2011
Posts: 1,833
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline

Joined: Jun 2011
Posts: 1,833
Crawfordville FL
Originally Posted By: gathermewool
Originally Posted By: Johnny2Bad
Oil colour alone tells you very little. It's an unreliable indicator of anything, actually.


+1

However, there's a huge difference between black-looking oil with 2k miles on it and black oil with 7k miles on it. My old STI used to turn oil dark very quickly; however, the opacity changed as the miles got on. 7k-mile-old oil looked pretty gross and indicated pretty much depleted in UOA.


This fits with my eyeball method. When draining, if I can see through the thick stream at all I know the oil had a bit of life left. If I drain and its tar black and opaque I know it's loaded up and used up.

I did an engine flush today and the drain came out opaque. That's what I expected even though it was just a 3k oci


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: So what probably happened? [Re: Speak2Mountain] #4493976
08/20/17 08:03 PM
08/20/17 08:03 PM
Joined: May 2013
Posts: 704
Florida
SilverSnake Offline
SilverSnake  Offline

Joined: May 2013
Posts: 704
Florida
The PUP in my 2014 Ram still looks clean as new after 4K miles on the oil.


2016 Charger, 6.4L-485 HP (PUP 0W-40)
2017 BMW 330i, 2L-248 HP (BMW 0W-20)
2018 Jeep GC, 5.7L-360 HP (PUP 5W-20)
2008 20KW Generac (Amsoil 10W-30/30)
Re: So what probably happened? [Re: simple_gifts] #4494077
08/20/17 10:30 PM
08/20/17 10:30 PM
Joined: Mar 2016
Posts: 1,945
Western S.C.
CR94 Offline
CR94  Offline

Joined: Mar 2016
Posts: 1,945
Western S.C.
Originally Posted By: simple_gifts
Or.... the additives in PP darken when exposed to heat faster than in Valvoline.

There is no control; so no conclusions can be drawn.
"PP" darkens remarkably slowly in my car, but so did previous oils (TGMO and Rural King, aka Warren synthetic).


2011 Toyota Prius now at 97K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
Re: So what probably happened? [Re: JustinH] #4494091
08/20/17 10:54 PM
08/20/17 10:54 PM
Joined: Feb 2013
Posts: 11,351
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline

Joined: Feb 2013
Posts: 11,351
Phoenix, AZ
Originally Posted By: JustinH
My hyundai GDI engine turns any oil black in 500-1000 miles.
I wonder why yours is so rough on oil. Mine still looks pretty good after 4,800 miles so far on this oil change.


2015 Hyundai Sonata 2.4L 92k STP Synthetic HM 10w30 & Wix
2000 Toyota Camry 2.2L 233k Mobil Super HM 10w40 & Fram Ultra
1996 Jeep Cherokee 4.0L 148k Mobil 1 HM 10w40 & Fram Ultra
Re: So what probably happened? [Re: Speak2Mountain] #4494104
08/20/17 11:32 PM
08/20/17 11:32 PM
Joined: Feb 2008
Posts: 4,727
Texas
FZ1 Offline
FZ1  Offline

Joined: Feb 2008
Posts: 4,727
Texas
The pp either cleaned better or it was too thin.

Re: So what probably happened? [Re: Speak2Mountain] #4494137
08/21/17 02:28 AM
08/21/17 02:28 AM
Joined: Jun 2002
Posts: 2,780
Southeastern USA
FowVay Offline
FowVay  Offline

Joined: Jun 2002
Posts: 2,780
Southeastern USA
I ran Pennzoil Platinum 5W-30 in my sister-in-law's Hyundai Elantra for a 5,000 mile interval and when I dissected the oil filter I was amazed at the carbon that was trapped in the pleats. I have never seen this engine produce any amount of carbon resembling this one specific interval.

I believe that the Pennzoil Platinum simply does an incredible job at cleaning the engine internals. The car is a 2002 model with 120,000 miles so it has had time to accumulate some dirt inside.

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